Post-processing techniques refer to the methods used to enhance or modify images, videos, or audio after the initial capture. These techniques can include adjustments to color, contrast, brightness, and sharpness, as well as the application of filters or effects. Common software used for post-processing includes Adobe Photoshop for images and Adobe Premiere Pro for videos. In photography, post-processing can help correct imperfections and bring out details that may not be visible in the original shot. In audio production, post-processing techniques like equalization and compression improve sound quality and clarity. Overall, these techniques play a crucial role in achieving a polished final product.